Version info change for 2.11 development.
[glibc.git] / bits / sigstack.h
blobde79c90afa36f9c61c110330af789801a927f005
1 /* sigstack, sigaltstack definitions.
2 Copyright (C) 1998, 1999 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #ifndef _SIGNAL_H
21 # error "Never include this file directly. Use <signal.h> instead"
22 #endif
25 /* Structure describing a signal stack (obsolete). */
26 struct sigstack
28 __ptr_t ss_sp; /* Signal stack pointer. */
29 int ss_onstack; /* Nonzero if executing on this stack. */
33 /* Alternate, preferred interface. */
34 typedef struct sigaltstack
36 __ptr_t ss_sp;
37 size_t ss_size;
38 int ss_flags;
39 } stack_t;
42 /* Possible values for `ss_flags.'. */
43 enum
45 SS_ONSTACK = 0x0001,
46 #define SS_ONSTACK SS_ONSTACK
47 SS_DISABLE = 0x0004
48 #define SS_DISABLE SS_DISABLE
51 /* Minumum stack size for a signal handler. */
52 #define MINSIGSTKSZ 8192
54 /* System default stack size. */
55 #define SIGSTKSZ (MINSIGSTKSZ + 32768)